+Yurkie Posted June 3, 2016 Share Posted June 3, 2016 I just installed a F18A in a ColecoVision today, since I have had several requests to offer this as a mod service. Quality is great like everyone has said. I was also pleasantly surprised that the F18A simulates scanlines. I added a switch to turn scanlines off and on. I'll sell this console and include 12' VGA cable with breakout 3.5mm audio for if anyone's interested. Here is full screen pic of Donkey Kong and a zoomed pic, sorry about the glare in the full screen pic. 4 Quote Link to comment Share on other sites More sharing options...
vazquezrick Posted June 3, 2016 Share Posted June 3, 2016 Does the F18a change the aspect ratio? Quote Link to comment Share on other sites More sharing options...
+Yurkie Posted June 3, 2016 Author Share Posted June 3, 2016 no it is still 4:3 Quote Link to comment Share on other sites More sharing options...
vazquezrick Posted June 4, 2016 Share Posted June 4, 2016 This video: https://youtu.be/vuLzSDlkwiM makes it look like the aspect ratio changes. Quote Link to comment Share on other sites More sharing options...
Bmack36 Posted June 4, 2016 Share Posted June 4, 2016 The first video is rf or AV mod on a LCD tv which stretched the image. The F18a videos show the correct aspect ratio. Quote Link to comment Share on other sites More sharing options...
+Yurkie Posted June 4, 2016 Author Share Posted June 4, 2016 Got my VGA to HDMI converter today. Very impressive I expected picture to be washed out in analog to digital conversion but it is pixel perfect. Now just deciding if HDMI converter should be internal, or maybe both VGA and HDMI port on the back of the console. Perhaps even a power switch to power on and off the HDMI when not in use. 1 Quote Link to comment Share on other sites More sharing options...
ColecoNoob Posted June 7, 2016 Share Posted June 7, 2016 I was also pleasantly surprised that the F18A simulates scanlines. Wow. Never realized that. Does the F18A do this by default or do I have to remove some of the jumpers? Quote Link to comment Share on other sites More sharing options...
matthew180 Posted June 7, 2016 Share Posted June 7, 2016 @vazquezrick: The F18A outputs a standard VGA 640x480@60Hz video signal, which is a 4:3 aspect (as Yurkie and Bmack36 confirmed). If you plug the F18A into a wide screen TV/monitor, the display might stretch the image. Many TVs have an option to show 4:3 aspect input video with left/right borders and maintain the original aspect. However, it seems many people would rather stretch the video to fill the screen. @ColecoNoob: The virtual scan line option was added in the V1.6 firmware update. The scan lines can be enabled by removing a jumper, or new software specifically written to take advantage of the F18A enhanced features can enable them programmatically. There are four “User Jumpers” on the F18A:USR1: Selects the power-on default maximum number of sprites on a line:On = 32 sprites can be displayed on a single lineOff = 4 sprites maximum can be displayed on a single lineUSR2: Select simulated CRT scanlines:On = no simulated scanlinesOff = enables simulated scanlinesUSR3: Pin-37 GROMCLK / CPUCLK select:On = GROMCLK output on pin-37 (9918A/28/29)Off = CPUCLK output on pin-37 (9128/29)USR4: Pin-38 CPUCLK enable:On = disabled (Hi-Z)Off = enabled VDP USR3 USR4 9928/29 on on pin-37 GROMCLK pin-38 Hi-Z (disabled) 9918A/9118 on off pin-37 GROMCLK pin-38 CPUCLK 9128/29 off on pin-37 CPUCLK pin-38 Hi-Z (disabled) not used off off pin-37 CPUCLK pin-38 CPUCLK Quote Link to comment Share on other sites More sharing options...
craigm71 Posted June 7, 2016 Share Posted June 7, 2016 Yurkie, Have you tested this out with the 2600 adapter? I doubt it will work since it does not with my F18A modded Adam, but I thought I would ask anyways. Thanks! 1 Quote Link to comment Share on other sites More sharing options...
+Yurkie Posted June 7, 2016 Author Share Posted June 7, 2016 Yurkie, Have you tested this out with the 2600 adapter? I doubt it will work since it does not with my F18A modded Adam, but I thought I would ask anyways. Thanks! The F18a replaces the video circuitry. I believe the 2600 module will still display via the RF and thru composite mod if added. But no VGA Atari. Quote Link to comment Share on other sites More sharing options...
RasterScan Posted January 6, 2017 Share Posted January 6, 2017 Are these upgrades still being produced? 1 Quote Link to comment Share on other sites More sharing options...
Rey Posted January 6, 2017 Share Posted January 6, 2017 Yes. I do them, Yurkie and Bmack36 do it as well. I suggest you contact them as I am not available to do these until around April-May. Rey 1 Quote Link to comment Share on other sites More sharing options...
killersquirel Posted January 6, 2017 Share Posted January 6, 2017 Opcodes color line of games really shine on an F18A modded ColecoVision. There are some other titles that will be coming out that will definitely be worth playing on an F18a system as well. Definitely worth it! Quote Link to comment Share on other sites More sharing options...
Bmack36 Posted January 6, 2017 Share Posted January 6, 2017 Yes. I do them, Yurkie and Bmack36 do it as well. I suggest you contact them as I am not available to do these until around April-May. Rey Yes I do them as well. I also offer a HDMI output version as well that incorporates a HDMI scalar inside the system as well as uses an off the shelf 5V supply to power the system. If you have any questions feel free to ask. You can check out my FB page or store in my signature as well. Thanks. Quote Link to comment Share on other sites More sharing options...
RasterScan Posted January 7, 2017 Share Posted January 7, 2017 Thanks! I will be in contact when I pickup a CV. Quote Link to comment Share on other sites More sharing options...
Bmack36 Posted January 7, 2017 Share Posted January 7, 2017 Thanks! I will be in contact when I pickup a CV. I also sell pre-modified systems if that is a better option. Quote Link to comment Share on other sites More sharing options...
Reality Studio Posted January 15, 2017 Share Posted January 15, 2017 I also sell pre-modified systems if that is a better option. Does your pre-modded system work over hdmi only for Colecovision games, or does it also work with Atari 2600 games with the adapter? Quote Link to comment Share on other sites More sharing options...
Bmack36 Posted January 16, 2017 Share Posted January 16, 2017 With the F18a the colecovision video only goes out the VGA or HDMI output. EM1 atari module compatibility can be done in 2 ways: With the VGA mod you can get the EM1 video output out of the RF output. The HDMI mod requires a separate composite video mod to get the EM1 output, since the RF box is removed. The composite mod would only be for the EM1 as the colecovision output would be going out of the HDMI. Any other questions feel free to ask. Thanks Quote Link to comment Share on other sites More sharing options...
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